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SQL

Reporting with PostgreSQL in a .NET 5 application for Debian 10
May 25, 2022
Marat Alaev
.NETVisual StudioFastReportLinuxCoreSQLNuGet

Many need a solution that will generate reports for Linux systems, and support working with SQL-like databases and not only. We have such a solution FastReport.Core. This library allows you to create reports under different Linux distributions and it can connect to different databases. In this ar...

How to select the top values in a matrix
April 22, 2021
Dmitriy Fedyashov
.NETFastReportSQLFilteringMatrix

The article is relevant until version 2022.1. FastReport .NET has a great tool for displaying data as an integrated table or matrix. Many of us would like to improve the functionality of matrices, for example, with such a useful option as a choice of N top values. It seems as simple as selecting th...

Turn database data into a document in Delphi / Lazarus / C++ Builder
February 3, 2021
Michael Philippenko
VCLLazarusFastReportData SourceSQLFirebirdDelphi

How to make a mush of data into an informative report? Oracle DB, MySQL, Microsoft SQL Server, PostgreSQL, FireBird are probably the most popular, but by no means all, of the many DBMSs in which data can be created, populated, modified and managed. Often they are filled with this very data for...

How to connect to the Sybase SQL Anywhere database
February 29, 2020
Dmitriy Fedyashov
.NETFastReportData SourceSQL

Sybase SQL Anywhere database has a number of very useful features that make it very competitive in comparison with competitors. First, it allows you to handle very large volumes of data. Secondly - it is highly productive, that is, despite the offer large volumes of data fast. Thirdly it requires mi...

How to connect to SQLCe
November 11, 2019
Dmitriy Fedyashov
.NETFastReportData SourceSQLPlugin

Microsoft SQL Server Compact Edition is a simple local relational database that doesn't require installation, and the connection is made to the database file. You do not need admin rights to work with the base. You can only "password" the base. For many developers, such a simple database is simply n...

How to use SQL queries when creating an internal report data source in FastReport .NET report designer
September 2, 2019
Dmitriy Fedyashov
.NETFastReportDesignerSQL

When creating a SQL database connection, you can specify a query to select filtered or combined data. The standard tools of the data source creation wizard also allow you to include parameters in the SQL query. In this case, the designation of the parameter will depend on the type of DBMS to which t...

Recursion in MS SQL
January 10, 2019
Dmitriy Fedyashov
SQL

Sometimes, a stored procedure or function is required to use the results of a sample several times. In such cases, we often use temporary tables. However, it is worth considering some advantages and disadvantages of temporary tables. Advantages: Temporary tables are full tables. Therefore, you c...

Window functions are what every T-SQL programmer should know. Part 2.
December 9, 2018
Dmitriy Fedyashov
SQL

In the second part of the article we will talk about the functions themselves, which are used to form values. The window function calculates the value from a set of data associated with the current row, that is, data from the same group, if Partition by is used. Conventional aggregate functions for ...

Window functions are what every T-SQL programmer should know. Part 1.
December 6, 2018
Dmitriy Fedyashov
SQL

Long time ago an interesting functionality appeared in Microsoft SQL Server 2005- window functions. These functions allow you to perform calculations in a given range of lines within a Select clause. For those who have not encountered these functions, the question arises - “What does window me...

How to use stored procedures in FastReport .NET
August 14, 2018
Dmitriy Fedyashov
.NETFastReportSQL

In this article we will discuss the use of stored procedures to retrieve data for a report. Using the MS SQL example, I'll show you how to create and use functions in a report. As you know, Transact SQL allows us to create stored procedures and functions. Stored procedures are used to automate any ...

How to use dynamic queries in FastReport .NET
August 14, 2018
Dmitriy Fedyashov
.NETFastReportSQL

Most users of FastReport .NET build reports receiving data from SQL DBMS, and would like to take advantage of Sql in their reports. Nothing prevents you from using dynamic queries, stored procedures and functions. In this article, we will have a look at how to use dynamic queries when creating a rep...

How to use SQL functions in FastReport NET
August 14, 2018
Dmitriy Fedyashov
.NETFastReportSQL

To obtain data in MS SQL, you can use sql queries, stored procedures, and stored functions. We have already discussed how to use dynamic queries and stored procedures as a report data source. In this article, we will create a table and scalar function and use them in the report. I recall that table...

Comparison of SSRS and FastReport .NET part 1
November 18, 2017
Dmitriy Fedyashov
.NETFastReportSSRSSQLConverter

Electronic and printed reporting is used in many areas of our life. Can you imagine an accountancy without annual reports? Or a transport company without invoices? One way or another, reports are of a great importance in production and business. That is why the report generator programs are just as ...

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